Feit Electric Non-Dimmable Plant Grow Light LED Bulb, 9-Watts, A19, 25,000 Hours Of Rated Life, Full Red Spectrum Wavelengths for faster budding/flowering. Standard base emits more light in useful 450 mm blue and 655-mm red spectrum than regular white LED bulbs. Low Heat Emission And Low Energy Consumption, Cooler Operation Than HPS Lamps To Guard Against Leaf Burn.